Patents by Inventor Tom Camis

Tom Camis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods and devices for electrophotographic printing
    Patent number: 8749600
    Abstract: A printing device includes a developer for developing a latent image with toner particles; an imaging plate comprising a plurality of pixel plates; and a plurality of voltage generators connected respectively to the pixel plates. The voltage generators positively bias selected pixel plates to form a latent image that is developed with toner from the developer. Another printing device includes a developer for developing a latent image with toner particles; an imaging plate comprising a plurality of pixel plates for selectively receiving toner particles from the developer; a plurality of voltage generators for biasing respective to pixel plates; and a background grid in the imaging plate for preventing toner particles from being deposited in areas between the pixel plates, wherein the background grid is connected to a voltage generator for applying a range of biases, positive and negative to the background grid.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: June 10, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Randy K. Rannow, Tom Camis, James W. Stasiak, Robert J. Lawton
  • Methods and devices for electrophotographic printing
    Publication number: 20080143808
    Abstract: A printing device includes a developer for developing a latent image with toner particles; an imaging plate comprising a plurality of pixel plates; and a plurality of voltage generators connected respectively to the pixel plates. The voltage generators positively bias selected pixel plates to form a latent image that is developed with toner from the developer. Another printing device includes a developer for developing a latent image with toner particles; an imaging plate comprising a plurality of pixel plates for selectively receiving toner particles from the developer; a plurality of voltage generators for biasing respective to pixel plates; and a background grid in the imaging plate for preventing toner particles from being deposited in areas between the pixel plates, wherein the background grid is connected to a voltage generator for applying a range of biases, positive and negative to the background grid.
    Type: Application
    Filed: October 30, 2006
    Publication date: June 19, 2008
    Inventors: Randy K. Rannow, Tom Camis, James W. Stasiak, Robert J. Lawton